Agro-climatological Aspects of the Global Warming and Its Impact on Paddy Rice Cultivation in East Asia

摘要

Agriculture is one of the sectors having a very close relation to global warming. Intergovernmental Panel on Climate Change (IPCC) shows ranges of percentage changes in crop yields with adaptive climate change scenarios for geographic location of the growing area. For rice of temperate Asia, only a clear increment is expected with an adaptation by shift of cultivation season. However, these estimations do not include variability of weather conditions which is getting more and more obvious. Actually, in the record observed, cold-weather damages occurred even under the global warming conditions. It will need to observe carefully the past and future agro-climatological events, because we need a long period of time before mitigation technology begin to work.